Window frame parting stop



Dec. 3,1946. 'H. G. WOMACjK' 2,412,190

wINDow FRAME PARTINGr` STOP l Filed sept. 22, 1944 Patented Dec. 3, 1946 UNITED STATES PATENT `OF-P' ICEv` n y 12,412,1*9o- 'l f "f QWINDOW'ERAME PARTING s'ror .'Harry `G.`'Womack, Atlanta, Ga. Apprenti@ `septmber 2z, 1944,':fseria1'No:5555313 This inventionxelates generally to improvements in'building construction and pertainsparticularly to improvements in parting stopsor window frames.

A principal Yobject 'of vthe vpresent invention is to providean improved .parting stop construction for window frames, wherein the parting stop is supportedin such a manner withinthe'jamb ashtohaveslight osciilatorymovement with rejspecttothe-face .of an adjacent stile of a sash, Wherebyaltight contact ismaintained at all times betweenithe' parting stop and the sash stile, the oscillatorym'ovement ofithe parting stop being leffected-"fluya resilient element supported'in the stopfgroove and having engagement with the stop.

t f-*Anther volojectrof"the 'invention is to provide,

proved pressure parting stops which are designed `toloe installedin a window frame without having to makelany changeV or alteration in the construction -of -the'frarneV or sashes other than to increase slightly the depth of thefparting stop grooves inthe jambs, in which the improved parting -stops :are positioned and in which they -function in cooperation'with the adjacentsashes for" the attainment; of the-desiredV results.

The? invention will bexbest'understood from a consideration of the following detailed description-taken inrconnectionwith thel accompanying drawing forming a vpart off this specification,r`

v.with the understanding, however, that the invention is :notconiined to a strict conformity with the showing of the drawing but may be changed for modified so long as such changes orA modifcations mark no materialy departure from the` salient-features of the invention as expressed in the'append'ed claims.

the drawing: A"Figure-'1 is` a vertical sectional a-jwindow Vframe-showing the present invention appliedthereto. t 'i `f Figure `2 isa horizontal section -'talenjsub- Stantially onthelinZ-LZ of Figure 1.

View through Figure 3 is yapartial section on an enlarged scaletaken on theline 3-3 of Figure 1.

Figure 4 is a view ofthe two sections zof'a parting stop, in side VAelevatioirand'inoperative relation.

Figure 5 4is a"detailview looking into aggportion lof a parting'stop"channel'and showing a partingstop spring mounted therein.

Referring now more particularly' to the'Vv drawing, the numeralV I0 generally designates a vwindow irameof the usual construction or'design in that it comprises the top or .head jamb 1|, the `jambs or side jambs I2 and the sill :'I`3. 'The numerals l-i and l5 designate respectively Vthe blind stop which is at the outer side ofthe frame, and the' inside stop and centrallyv between these stops the jambs'lZ are provided wth'the 'usual `centrally located `.longitudinally extending channels I6: in which arelocated the-hereinafter described parting stops which separatethe Ainner .and outer or lower and upper, ,sash 'Hand I8 respectively. The side stiles ofthe lower and uppersash are, respectively, designatedland The parting stoplocated in each .channel l,I6 and Iconstructed in accordance I with. the. present invention ,is generally designatedfZ I.V lEach parting stop is formedk inv two sections designated .22 and 23, `for the `upper and lowerfsectionsirespectively.` These sections are disposed one above vtheqother and in endabutting relation finjthe .plane 'ofthe sash check rails 24.

" lThe parting stop sections `are...ofmaterially `greater Width than thickness asisfclearly shown in the,horizontalsectionalyiews.

Each parting stopfsection Ahasa {groove rL25 formed llongitudinallyv in one side. vface `sit-the edge of the sectionl'ying" within the channel I6 and the opposite face A y posite from thev grooveiv` bevelled kslightly.to

l formV the'substantially :centrally locatedllongitudinally extending fulcrum rib 2t 'which bears I against the adjacent'side of the channel adjacent Y the outer side or. longitudinal cornertheieof.`

secureuto Vthe innerv or' bottomjwan 'ofthe channel adjacent to each parting stop section, `bythescrews 21 or other ,suitable meansvarethe springngers V28` each of which rests in a groove 25 andexerts pressure transversely of the part- A ingfstopsection which it engages',` tending to cause the sectionto rock' on the fulcruin 26.1 A'

Y The outer half of `eachfpartingnetopvseetion upon the sideface opposite fromethetfulcrumjrib l26' hasthe outset orxoutwardly-` projecting yrelahas that .portionjlyi-ng opu against the adjacent face of the adjacent sashl tom sash.

The portion of the side face of each parting stopsection directly opposite from the bearing flange,V is inset or recessed as indicated at 30.

Since the parting stop sections are urgedrto oscillate in opposite directions by their respective springs 218 and the space between the check rails of the upper and lower sash is slightly greater than the over-all width of each parting stop section in the portion between the face of the bearing flange and the surface of the recess 33, it will be seen that a clearance is provided between the side of each p-arting stop section opposite the bearing flange and the sash stile opposite from that against which the bearing flange engages, so that when either sash is shift-ed to open position it will be free of frictional contact with the parting stop section of the other sash.

The inner edge surfaces of the parting stop sections are likewise provided. through the parts thereof which position in the r-abbets at the Vends of the check rail when the sashes are in closed position, with 'outset portions as indicated at 3| and such outset portion of each parting stop section engages the adjacent end 'of the check Vrail when the sashes are closed. However, when either sash is opened a clearance is provided be- Y tween thevend of the check railV and the edge of the adjacent parting stop section as indicated at 32, thereby providing for the free movement of the sashes with respect to the parting stop.

'Ihese wide or outset portions 3| form a tight seal at the check rails.r

The parting stops are of a width which allows for a clearance 33 between the inner edges of th-e strip sections and the bottoms of the channels in which they are positioned. The springs are sufficiently flexible so that any expansion in Ythe width of the sash is taken care of by this clearance between the back edge ofthe parting stop sections and the bottom of the channel in the jamb in which, the parting stop is set. J The action of the springs is to force the parting stops or theV fulcrum ribs thereof` A'tightly againstthe sides of the channel I3 and the slight rocking movement which would be imparted to the parting stop sections from this action of' the spring, forces'the bearing flangeof eachi section slightly against the adjacent sash stile.:

The top parting stops contact the bottom sash f stop strip .in-each vchannel and divided intoftwoy only at'the check rail, and the bottom stopsvcon- "tact'the top sash only atvthe check rail. It will thus be seen upon reference to the drawing that the bottom and top stops or parting stop sections 4 form to the shape of the sill, forming a tight seal without interfering with drainage of the sill.

The head jamb is provided with two parallel grooves 35 and 36 and an intervening tongue 31. y The top rail of the top sash is longitudinallyV The outer side of this groove is bevelled as indicated at 39 to allowV grooved as indicated at 38.

for any variation between the head jamb and the top rail of the sash. As will be'readily apparent the bevelled side of the groove 38 Vbears against a Acorrespondingly bevelled inner side 400i the groove 35 thereby establishing a tight joint.

. From the foregoing, it will bev readily apparent that a window constructed with parting stops of the design herein disclosed and with the Ijoints between the top rail of the top sash and the head jamb and between the bottom rail of the bottom sash and the sill, constructed as illustrated and described, will be air and water tight. At the same time, by reason of the novel formation of the parting stop sections, the upper and lower sash maybe easily shifted withra minimum of friction. Q

Y It is also to be'understood that the stops herein described may be used horizontally on or in connectionv with :horizontal sliding windows toY prevent rattle and inltration of air.

I claim: l

l. A window frame and sash construction, a

frame having side jambs each having a parting stop channel formed longitudinally thereinand sash inthe frame between. the jambs; a parting stop in each channel formed of two independent.

relation,. each *Y section having a portion extending outwardly sections disposed in end abutting from the channel to position between adjacent sash, each section having a longitudinalribfon one side face engaging and rocking uponwthe adjacent side of Ythe channel, spring means housed entirely within the channel adjacent lto theY side faces of the sections opposite from; the rib and engagingthe section to rock the same on the ribs, the portion of each parting stop section lyingoutside the channel rand Valong-'the side face thereof opposite fromthe rib being formed to provide an outstanding bearing flange having contact with the adjacent sash. y ,A

2. A window frame andsash constructionas set forth in claim l, in which'rthe side/face of each parting stop sectionopposite from the bearing flange, is recessed to 'form a' `v between Ythexsectio'n and the other-sash.

framezhaving side sash/inthe frame between theljambs; a parting sections having end abutting relation',Y each sec tionbeing disposed adjacent to a vertical stile of lone sash,ineans forming a fulcrum upon one'side race of eachA parting stoplsection and bearing v against the adjacent side of the channel, agbear are completely independent of each other.` When parting stop sections onthe sash as it is raised making foreasier opening Vofthe same. "When the bottom sash is completely raised, or thef'upperV` sash' is completely lowered, onlya small portion of one of the parting A'stop sections isin contact V with thesash.d A y d The sill I3 has a bevelled rabbet 34 andA the `bottom rail ofthe bottom sash is rabbeted to y con- Ving ,iiange'formed along thefside face of eajch 'section' opposite from, the f ulcrum forming means and disposedoutsidethe channelfor bearingcon'. n tact with the adjacent sash stile, each parting stopV section having a groove formedinthe sideiface Vopposite from the fulcrurn `Vforming means'and disposed in thechannel, and a spring member'sefcured inthe channel and engaged in the, adjacent groove and constantly urging Yoscillationofgr the l section upon the fulcrum means to maintaintight contact between the flange and, thesash vstile engaged thereby. c; 4. In awindowframefandsasn:constructiony'a clearance spaceV and engaging each section for e'ecting the oscilf lation thereof, and each parting stop section being shaped to provide an outset portion adjacent to the abutting ends oi" the sections, uponk the outer edge face thereof and extending in a lengthwise direction, for engagement with an adjacent portion of the check rail of a sash when 'the sashes are in closed position.

5. A window frame and sash construction as set forth in claim 4, wherein the said means for effecting oscillation of each parting stop section is positioned upon the bottom of the channel and maintains the section in a position in the channel in which the inner edge face of the section is in spaced relation with the bottom of the channel.

6. In a window frame and sash construction including a frame having side jambs each having a parting stop channel formed longitudinally therein and sash in the frame between the jambs; a parting stop strip in each channel and divided into two sections having end abutting relation, each section being disposed adjacent to a vertical stile of one sash, one side face of each parting stop section being formed to provide a longitudinally extending fulcrum rib disposed substantially midway between the inner and outer edge faces and having rocking `bearing against the adjacent side oi the channel, a bearing iiange formed along the side face of each section opposite from the fulcrum forming rib and disposed outside the channel for bearing contact with the adjacent sash stile, each parting stop section having a groove formed in the side faceopposite from the fulcrum forming rib and disposed Within the channel inwardly from the rib, said groove further opening at one side toward the bottom of the channel, and a spring member secured within the channel and engaged in the adjacent groove and constantly imposing a thrust against the engaged section tending to rock the section upon the fulcrum rib to maintain a tight contact between the iiange and the sash stile engaged thereby.

7. A structure as set forth in claim 6, wherein said spring member comprises a portion disposed against and secured tothe bottom surface of the channel and a free portion having a part directed outwardly from the bottom of the channel and having a second terminal part directed across the channelfor engagement in the adjacent-groove, whereby the engaged portion is yieldingly'held against movement into and toward the bottom 30 of the channel.

HARRY G. wor/LACK. 

